import sys
input = sys.stdin.readline

# A - Kyu in AtCoder
X = int(input())

print(10 - X // 200) import sys sys input = sys.stdin.readline input sys.stdin.readline sys.stdin sys stdin readline X = int(input()) X int(input()) int input() input print(10 - X // 200) print 10 - X // 200 10 X // 200 X 200 input = sys.stdin.readline sys.stdin.readline input X = int(input()) int(input()) X
import sys
input = sys.stdin.readline

# A - Kyu in AtCoder
X = int(input())

print(10 - X // 200)